Περιγραφή
This high-quality corrector system was especially developed for SC telescopes. With this 4-element system, you can make a fast telescope for astrophotography out of your SCT.
The reducer is a very good solution for astrophotography with SCT when using a 2″ focuser.
Features and applications of the Antares f/6.3 SCT Reducer:
- The focal length reducer fits to Schmidt-Cassegrain telescopes from Celestron and Meade, which have been equipped with a 2″ focuser. It is simply plugged into the 2″ eyepiece holder.
- The f/6.3 reducer has a 2″ filter thread at the eyepiece side. You can use normal accessories, especially off-axis guiders.
- The optimal working distance from the 2″ (M48) filter thread of the reducer is 80 mm. You can exceed or under-run this distance by 15% without appreciable loss of quality, but with another factor.
- The focal length of the SC telescopes is reduced with the factor 0.63 – 2000 mm become 1260 mm focal length. The speed is considerably increased. You achieve the same saturation with only 40% exposure time, compared to the photography without reducer.
- The reducer also provides a visual improvement, the gain in true field of view is significant. We recommend using the reducer with 1.25″ eyepieces.
Astrophotography with off-axis guider:
Because of the long focal distance and the large aperture of SC telescopes, we recommend off-axis guiding. With this, the imaging telescope becomes guide scope at the same time. Due to the M48 connection, you usually do not need an adapter.
High-quality 4-element focal reducer for Schmidt-Cassegrain telescopes (SCT) from Celestron and Meade.
- Simple connection – the reducer is simply put into the receptacle of a 2″ focuser of an SC telescope
- Therefore ideal solution for astrophotography with SCT, if such a focuser is used – no adapters necessary!
- The focal length is multiplied with the factor 0.63 – thus exposure times are shortend by a factor of 2.5!
- The focal reducer can be excellently used photographically and visually. The unvignetted area has about 24 mm diameter.
- Long working distance of 80 mm from the thread at the camera side – enough space for accessories and adapters
